Folding chair



FIG. 1 is a perspective view illustrating my new design;

FIG. 2 is a right-side view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

I claim the ornamental design for a folding chair, as shown anddescribed.